/[MITgcm]/MITgcm/pkg/aim_v23/phy_suflux_ocean.F
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Revision 1.2 - (hide annotations) (download)
Thu Jun 24 23:43:11 2004 UTC (19 years, 11 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint64y, checkpoint64x, checkpoint58l_post, checkpoint64z, checkpoint57t_post, checkpoint64q, checkpoint64p, checkpoint64s, checkpoint64r, checkpoint64u, checkpoint64t, checkpoint64w, checkpoint64v, checkpoint64i, checkpoint64h, checkpoint64k, checkpoint64j, checkpoint64m, checkpoint64l, checkpoint64o, checkpoint64n, checkpoint64a, checkpoint57o_post, checkpoint64c, checkpoint64b, checkpoint64e, checkpoint64d, checkpoint64g, checkpoint64f, checkpoint58e_post, checkpoint57v_post, checkpoint58u_post, checkpoint58w_post, checkpoint54a_pre, checkpoint57m_post, checkpoint55c_post, checkpoint54e_post, checkpoint57s_post, checkpoint54a_post, checkpoint63p, checkpoint63q, checkpoint63r, checkpoint63s, checkpoint63l, checkpoint63m, checkpoint63n, checkpoint63o, checkpoint63h, checkpoint63i, checkpoint63j, checkpoint63k, checkpoint63d, checkpoint63e, checkpoint63f, checkpoint63g, checkpoint63a, checkpoint63b, checkpoint63c, checkpoint57k_post, checkpoint55d_pre, checkpoint57d_post, checkpoint57g_post, checkpoint64, checkpoint65, checkpoint60, checkpoint61, checkpoint62, checkpoint63, checkpoint57b_post, checkpoint57c_pre, checkpoint58r_post, checkpoint55j_post, checkpoint56b_post, checkpoint57i_post, checkpoint57y_post, checkpoint57e_post, checkpoint66g, checkpoint66f, checkpoint66e, checkpoint66d, checkpoint66c, checkpoint66b, checkpoint66a, checkpoint66o, checkpoint66n, checkpoint66m, checkpoint66l, checkpoint66k, checkpoint66j, checkpoint66i, checkpoint66h, checkpoint55h_post, checkpoint58n_post, checkpoint58x_post, checkpoint57g_pre, checkpoint54b_post, checkpoint55b_post, checkpoint58t_post, checkpoint58h_post, checkpoint65z, checkpoint65x, checkpoint65y, checkpoint54d_post, checkpoint65r, checkpoint65s, checkpoint65p, checkpoint65q, checkpoint65v, checkpoint65w, checkpoint65t, checkpoint65u, checkpoint65j, checkpoint65k, checkpoint65h, checkpoint65i, checkpoint65n, checkpoint65o, checkpoint65l, checkpoint65m, checkpoint65b, checkpoint65c, checkpoint65a, checkpoint65f, checkpoint65g, checkpoint65d, checkpoint65e, checkpoint56c_post, checkpoint57y_pre, checkpoint55, checkpoint57f_pre, checkpoint57a_post, checkpoint54, checkpoint58q_post, checkpoint54f_post, checkpoint59q, checkpoint59p, checkpoint55g_post, checkpoint59r, checkpoint58j_post, checkpoint59e, checkpoint59d, checkpoint59g, checkpoint59f, checkpoint59a, checkpoint55f_post, checkpoint59c, checkpoint59b, checkpoint59m, checkpoint59l, checkpoint59o, checkpoint59n, checkpoint59i, checkpoint59h, checkpoint59k, checkpoint59j, checkpoint57r_post, checkpoint59, checkpoint58, checkpoint57a_pre, checkpoint55i_post, checkpoint57, checkpoint56, eckpoint57e_pre, checkpoint57h_done, checkpoint58f_post, checkpoint53g_post, checkpoint57x_post, checkpoint57n_post, checkpoint58d_post, checkpoint58c_post, checkpoint57w_post, checkpoint57p_post, checkpint57u_post, checkpoint57f_post, checkpoint58a_post, checkpoint58i_post, checkpoint57q_post, checkpoint58g_post, checkpoint58o_post, checkpoint57z_post, checkpoint62c, checkpoint62b, checkpoint62a, checkpoint62g, checkpoint62f, checkpoint62e, checkpoint62d, checkpoint62k, checkpoint62j, checkpoint62i, checkpoint62h, checkpoint62o, checkpoint62n, checkpoint62m, checkpoint62l, checkpoint62s, checkpoint62r, checkpoint62q, checkpoint62p, checkpoint62w, checkpoint62v, checkpoint62u, checkpoint62t, checkpoint57c_post, checkpoint62z, checkpoint62y, checkpoint62x, checkpoint58y_post, checkpoint55e_post, checkpoint58k_post, checkpoint58v_post, checkpoint53f_post, checkpoint55a_post, checkpoint54c_post, checkpoint58s_post, checkpoint61f, checkpoint61g, checkpoint61d, checkpoint61e, checkpoint61b, checkpoint61c, checkpoint58p_post, checkpoint61a, checkpoint61n, checkpoint61o, checkpoint61l, checkpoint61m, checkpoint61j, checkpoint61k, checkpoint61h, checkpoint61i, checkpoint61v, checkpoint61w, checkpoint61t, checkpoint61u, checkpoint61r, checkpoint61s, checkpoint61p, checkpoint61q, checkpoint57j_post, checkpoint61z, checkpoint61x, checkpoint61y, checkpoint58b_post, checkpoint57h_pre, checkpoint58m_post, checkpoint57l_post, checkpoint57h_post, checkpoint56a_post, checkpoint55d_post, HEAD
Changes since 1.1: +17 -4 lines 
- include stability function into surf.Flux derivative relative to Ts
- calculate clear-sky radiation & surface temp. change
- update diagnostics (snap-shot, timeave & diagnostics)
1 jmc 1.2 C $Header: /u/gcmpack/MITgcm/pkg/aim_v23/phy_suflux_ocean.F,v 1.1 2004/03/11 14:33:19 jmc Exp $
2 jmc 1.1 C $Name: $
3    
4     #include "AIM_OPTIONS.h"
5    
6     CBOP
7     C !ROUTINE: SUFLUX_OCEAN
8     C !INTERFACE:
9     SUBROUTINE SUFLUX_OCEAN(
10     I PSA, FMASK,
11     I Tsurf, SSR, SLRD,
12 jmc 1.2 I T1, T0, Q0, DENVV,
13 jmc 1.1 O SHF, EVAP, SLRU,
14     I bi,bj,myThid)
15    
16     C !DESCRIPTION: \bv
17     C *==========================================================*
18     C | S/R SUFLUX_OCEAN
19     C | o compute surface flux over ocean
20     C *==========================================================*
21     C | o contains part of original S/R SUFLUX (Speedy code)
22     C *==========================================================*
23     C \ev
24    
25     C !USES:
26     IMPLICIT NONE
27    
28     C Resolution parameters
29    
30     C-- size for MITgcm & Physics package :
31     #include "AIM_SIZE.h"
32     #include "EEPARAMS.h"
33    
34     C Physical constants + functions of sigma and latitude
35     #include "com_physcon.h"
36    
37     C Surface flux constants
38     #include "com_sflcon.h"
39    
40     C == Routine Arguments ==
41     C-- Input:
42     C FMASK :: fractional land-sea mask (2-dim)
43     C Tsurf :: surface temperature (2-dim)
44     C SSR :: sfc sw radiation (net flux) (2-dim)
45     C SLRD :: sfc lw radiation (downward flux)(2-dim)
46 jmc 1.2 C T1 :: near-surface air temperature (from Pot.temp)
47 jmc 1.1 C T0 :: near-surface air temperature (2-dim)
48     C Q0 :: near-surface sp. humidity [g/kg](2-dim)
49 jmc 1.2 C DENVV :: surface flux (sens,lat.) coeff. (=Rho*|V|) [kg/m2/s]
50 jmc 1.1 C-- Output:
51     C SHF :: sensible heat flux (2-dim)
52     C EVAP :: evaporation [g/(m^2 s)] (2-dim)
53     C SLRU :: sfc lw radiation (upward flux) (2-dim)
54     C-- Input:
55     C bi,bj :: tile index
56     C myThid :: Thread number for this instance of the routine
57     C--
58     _RL PSA(NGP)
59     _RL FMASK(NGP), Tsurf(NGP)
60 jmc 1.2 _RL SSR(NGP), SLRD(NGP)
61     _RL T1(NGP), T0(NGP), Q0(NGP), DENVV(NGP)
62 jmc 1.1
63     _RL SHF(NGP), EVAP(NGP), SLRU(NGP)
64    
65     INTEGER bi,bj,myThid
66     CEOP
67    
68     #ifdef ALLOW_AIM
69    
70     C-- Local variables:
71 jmc 1.2 C CDENVV :: surf. heat flux (sens.,lat.) coeff including stability effect
72     _RL CDENVV(NGP), RDTH, FSSEA
73 jmc 1.1 _RL QSAT0(NGP)
74     _RL QDUMMY(1), RDUMMY(1), TS4
75     INTEGER J
76    
77     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
78    
79     C-- 2. Computation of fluxes over land and sea
80    
81     C 2.1 Wind stress
82    
83     C 2.2 Sensible heat flux (from clim. TS over land)
84    
85 jmc 1.2 C Stability correction
86    
87     RDTH = FSTAB/DTHETA
88    
89     DO J=1,NGP
90     FSSEA =1.+MIN(DTHETA,MAX(-DTHETA, Tsurf(J)-T1(J)))*RDTH
91     CDENVV(J)=CHS*DENVV(J)*FSSEA
92     ENDDO
93    
94 jmc 1.1 DO J=1,NGP
95     SHF(J) = CDENVV(J)*CP*(Tsurf(J)-T0(J))
96     ENDDO
97    
98     C 2.3 Evaporation
99    
100     CALL SHTORH (0, NGP, Tsurf, PSA, 1. _d 0, QDUMMY, RDUMMY,
101     & QSAT0, myThid)
102    
103     DO J=1,NGP
104     EVAP(J) = CDENVV(J)*(QSAT0(J)-Q0(J))
105     ENDDO
106    
107     C 2.4 Emission of lw radiation from the surface
108    
109     DO J=1,NGP
110     TS4 = Tsurf(J)**4
111     SLRU(J) = SBC*TS4
112     ENDDO
113    
114     C-- 3. Adjustment of skin temperature and fluxes over land
115     C-- based on energy balance (to be implemented)
116     C <= done separately for each surface type (land,sea,se-ice)
117    
118     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
119     #endif /* ALLOW_AIM */
120    
121     RETURN
122     END
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